CN111659919A - Method for establishing exhaust pipe coordinate system after rotation of horizontal boring and milling machining center workbench - Google Patents
Method for establishing exhaust pipe coordinate system after rotation of horizontal boring and milling machining center workbench Download PDFInfo
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- CN111659919A CN111659919A CN202010541191.8A CN202010541191A CN111659919A CN 111659919 A CN111659919 A CN 111659919A CN 202010541191 A CN202010541191 A CN 202010541191A CN 111659919 A CN111659919 A CN 111659919A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/02—Boring machines; Combined horizontal boring and milling machines
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
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Abstract
The invention discloses a method for establishing a coordinate system of an exhaust pipe after a workbench of a horizontal boring and milling machining center rotates, which comprises the following steps of 1) supporting the exhaust pipe on the workbench; 2) fixing a position reference tool on one side of the exhaust pipe; 3) establishing a workpiece coordinate system of a center B of a square flange surface; 5) obtaining a mechanical coordinate Zc of the tooling center C; 6) obtaining a mechanical coordinate Xc of a tooling center C; 7) obtaining the position sizes of the center B of the square flange surface and the center C of the position reference tool in the X-axis direction and the Z-axis direction; 8) rotating the workbench by 120 degrees anticlockwise to obtain the position sizes of a center A of the circular flange face and a center C of the tool; 9) obtaining a mechanical coordinate Zc1 of the tooling center C; 11) obtaining a mechanical coordinate Xc1 of the center C of the tool; 12) and establishing a workpiece coordinate system of the center A of the circular flange face. The invention is simple and easy to understand, is simple and convenient to operate, and can improve the working efficiency.
Description
Technical Field
The invention relates to machining of a marine diesel engine exhaust pipe, in particular to a method for establishing a coordinate system of the exhaust pipe after the exhaust pipe rotates on a horizontal boring and milling machining center workbench, and belongs to the technical field of numerical control machining.
Background
The exhaust pipe is one of important parts of a diesel medium-speed engine, and the quality of the exhaust pipe directly influences the overall performance and the service life of the diesel engine. As shown in fig. 1, the exhaust pipe 1 is provided with a bevel flange 11 for mounting the cylinder head of the last cylinder, a square flange 12 for mounting the rest of the cylinder heads, and a circular flange 13 for mounting the supercharger, wherein the phase angle β of the square flange surface and the circular flange surface is 60 °, the mutual position sizes of the center B of the square flange surface and the center a of the circular flange surface are respectively L =575 ± 0.01, H =393.8 ± 0.10, the tolerance is small, and the precision is high.
Because the square flange surface and the circular flange surface form a phase angle of 60 degrees and are not parallel or vertical, the common machine tool cannot process under the condition of no special clamp. In a numerical control machining center, one method is that a workpiece rotates without rotating an accessory head in a gantry five-surface machining center, the investment cost of a tool and equipment is high, the other method is that a horizontal boring and milling machining center workbench rotates, a mechanical coordinate system of a rotation center of the horizontal boring and milling machining center workbench is determined, a workpiece coordinate system of a square flange surface center B is determined, and finally a macro program is written to calculate a workpiece coordinate system of a circular flange surface center A with a phase angle of 60 degrees.
Disclosure of Invention
The invention aims to provide a method for establishing a coordinate system of an exhaust pipe after a horizontal boring and milling machining center worktable rotates, which has the advantages of low cost and simple and convenient operation.
The invention is realized by the following technical scheme:
a method for establishing a coordinate system of an exhaust pipe after a horizontal boring and milling machining center workbench rotates comprises the following steps:
1) supporting a cone flange of the exhaust pipe on a workbench of a horizontal boring and milling machining center, supporting a circular flange end of the exhaust pipe on an adjustable support frame, adjusting the adjustable support frame to enable the central line of the exhaust pipe to be horizontal, and pressing the upper sides of two ends of the exhaust pipe by using a pressing plate;
2) fixedly mounting a position reference tool on a workbench and locating at one side of an exhaust pipe;
3) clamping a thimble at one end of a machine tool main shaft, aligning the thimble with a cross center line of the square flange surface of the exhaust pipe, and scribing to establish a workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe: x0, Y0 and Z0 corresponding to mechanical coordinate systems Xb, Yb and Zb;
4) processing the square flange surface of the exhaust pipe and a related hole by utilizing a workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe;
5) clamping a core rod at one end of a machine tool spindle, and obtaining a mechanical coordinate Zc corresponding to the center C of the position reference tool by using the end surface of the core rod close to one side of a vertical shaft of the position reference tool;
6) obtaining a mechanical coordinate Xc corresponding to the center C of the position reference tool by using the outer circle of the core rod to lean against the outer side of the vertical shaft of the position reference tool;
7) the position size L2= Xb-Xc of the center B of the exhaust pipe square flange surface and the center C of the position reference tool in the X-axis direction, and the position size L3= Zb-Zc in the Z-axis direction;
8) rotating the workbench 120 degrees along the counterclockwise direction, so that the circular flange surface of the exhaust pipe is perpendicular to the central line of the machine tool spindle, wherein A is the center of the circular flange surface of the exhaust pipe, and the position sizes L4 and L5 between the center A of the circular flange surface of the exhaust pipe and the center C of the position reference tool at the moment can be obtained as follows:
L4=L－L3
L5=L2－H
l and H are the position size between the center B of the square flange surface of the exhaust pipe and the center A of the circular flange surface respectively;
9) taking a connecting line of the center A of the circular flange surface of the exhaust pipe and the center C of the position reference tool as a hypotenuse to form a right-angled triangle ADC, and calculating by utilizing L4 and L5 through a trigonometric function to obtain the side lengths of two right-angled sides AD and CD;
10) obtaining a mechanical coordinate Zc1 corresponding to the center C of the position reference tool by using the end surface of the core rod on the main shaft of the machine tool to lean against one side of the vertical shaft of the position reference tool;
11) the outer circle of the core rod is close to the outer side of the vertical shaft of the position reference tool, so that a mechanical coordinate Xc1 corresponding to the center C of the position reference tool can be obtained;
12) the mechanical coordinate Xa = Xc 1-CD of the center A of the circular flange surface of the exhaust pipe in the X-axis direction, the mechanical coordinate Za = Zc1 + AD of the Z-axis direction, the mechanical coordinate Xa in the X-axis direction is set to be 0, the mechanical coordinate Za in the Z-axis direction is set to be 0, and a workpiece coordinate system G55 of the center A of the circular flange surface of the exhaust pipe is established: the workpiece coordinate system Y0 of X0, Z0, G55 and the workpiece coordinate system G54 of the center B of the exhaust pipe square flange face: y0 is the same;
13) and machining the circular flange surface of the exhaust pipe and the related hole by utilizing a workpiece coordinate system G55 of the center A of the circular flange surface of the exhaust pipe.
The object of the invention is further achieved by the following technical measures.
The method for establishing the coordinate system of the exhaust pipe after the rotation of the horizontal boring and milling machining center workbench comprises the steps that the position reference tool comprises an inverted T-shaped shaft, a plurality of mounting blocks and a plurality of double-headed bolts, the inverted T-shaped shaft comprises a transverse edge and a vertical shaft, the inverted T-shaped shaft is supported on the workbench, the mounting blocks are arranged in a T-shaped groove of the workbench at intervals, the lower ends of the double-headed bolts penetrate through the transverse edge of the inverted T-shaped shaft respectively and are screwed on the corresponding mounting blocks, and the upper ends of the double-headed bolts are locked through nuts respectively.
According to the method for establishing the coordinate system of the exhaust pipe after the workbench of the horizontal boring and milling machining center rotates, in the step 2), the specific position of the position reference tool can ensure that the mandrel on the main shaft of the machine tool can contact the vertical shaft of the position reference tool before and after the workbench rotates.
In the method for establishing the coordinate system of the exhaust pipe after the horizontal boring and milling center worktable rotates, Zc in step 5) is as follows:
Zc=Z1－L1－D/2
z1 is the current Z-axis mechanical coordinate value corresponding to the center of the machine tool spindle
L1 is the mandrel length
D is the diameter of the vertical shaft of the position reference tool.
In the method for establishing the coordinate system of the exhaust pipe after the horizontal boring and milling center worktable rotates, Xc in step 6) is as follows:
Xc =X1＋d/2＋D/2；
x1 is the current X-axis mechanical coordinate value corresponding to the center of the machine tool spindle
d is the diameter of the core rod
D is the diameter of the vertical shaft of the position reference tool.
In the method for establishing the coordinate system of the exhaust pipe after the horizontal boring and milling center worktable rotates, in step 10), Zc1 is:
Zc1 =Z11－L1－D/2
z11 is the current Z-axis mechanical coordinate corresponding to the center of the mechanical main shaft
L1 is the mandrel length
D is the diameter of the vertical shaft of the position reference tool.
In the method for establishing the coordinate system of the exhaust pipe after the horizontal boring and milling center worktable rotates, Xc1 in step 11) is:
Xc1 =X11－d/2－D/2
x11 is the current X-axis mechanical coordinate value corresponding to the mechanical spindle center
d is the diameter of the core rod
D is the diameter of the vertical shaft of the position reference tool.
The center B of the square flange surface of the exhaust pipe is established by using a thimble on a main shaft of a machine tool, meanwhile, after a workbench rotates anticlockwise for a certain angle, the position relation between the center C of a position reference tool and the center B of the square flange surface of the exhaust pipe is firstly utilized, the position relation between the center A of the circular flange surface of the exhaust pipe and the center C of the position reference tool is obtained through calculation, then the mechanical coordinate of the center C of the position reference tool after the workbench rotates is obtained through a core rod on the main shaft of the machine tool, the mechanical coordinate of the center C of the position reference tool is converted into the mechanical coordinate of the center A of the circular flange surface of the exhaust pipe, and the workpiece coordinate system of the center A of the circular flange surface of the exhaust pipe can be established through setting. The whole process can establish a corresponding workpiece coordinate system by simple calculation, is simple and easy to understand, has very simple and convenient operation, can be easily mastered by technologists and machine tool operators, can greatly improve the working efficiency, and can also effectively ensure the processing quality of the exhaust pipe. The invention is suitable for processing all surfaces which form a certain angle with each other, and has wide application range.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the structure of an exhaust pipe according to the present invention;
FIG. 2 is a schematic view of the position reference tool of the present invention;
FIG. 3 is a schematic view of the exhaust pipe supported on the worktable;
FIG. 4 is a schematic view of the mechanical coordinate system of the center B of the exhaust pipe square flange face;
FIG. 5 is a schematic view of the mandrel end face against one side of the vertical axis of the position referencing tool;
FIG. 6 is a schematic structural view of the outer side of the vertical shaft of the position reference tool with the outer circle of the mandrel abutted against the outer side of the vertical shaft;
FIG. 7 is a schematic view showing a positional relationship between a center B of a square flange surface of the exhaust pipe and a center C of the position reference jig;
FIG. 8 is a schematic structural view of the worktable rotated 120 counterclockwise;
FIG. 9 is a schematic view of the mandrel end face against one side of the vertical axis of the position referencing tool;
FIG. 10 is a schematic view of the outer side of the vertical shaft of the position reference tool with the outer circumference of the mandrel against the position;
fig. 11 is a schematic mechanical coordinate system of the center a of the circular flange surface of the exhaust pipe.
Detailed Description
The invention is further illustrated by the following figures and examples.
The machine tool is a horizontal boring and milling machining center, and the special tool is a position reference tool 2. As shown in fig. 2, the position reference tool 2 includes an inverted T-shaped shaft 21, two mounting blocks 22 and two stud bolts 23, the inverted T-shaped shaft 21 includes a transverse edge 211 and a vertical shaft 212, the inverted T-shaped shaft 2 is supported on the worktable 3, the two mounting blocks 22 are arranged in the T-shaped groove 31 of the worktable 3 at intervals, the lower ends of the two stud bolts 23 respectively penetrate through the transverse edge 211 of the inverted T-shaped shaft 21 and are screwed on the corresponding mounting blocks 22, and the upper ends of the two stud bolts 23 are respectively locked by nuts 24.
A method for establishing a coordinate system of an exhaust pipe after a horizontal boring and milling machining center workbench rotates comprises the following steps:
1) as shown in fig. 3, a cone flange 11 of the exhaust pipe 1 is supported on a workbench 3 of a horizontal boring and milling center, a circular flange end of the exhaust pipe 1 is supported on an adjustable support frame 4, the adjustable support frame 4 is adjusted to enable the central line of the exhaust pipe 1 to be horizontal, and then pressing plates (not shown in the figure) are used for pressing the upper sides of two ends of the exhaust pipe 1;
2) fixedly mounting the position reference tool 2 on the workbench 3 and locating at one side of the exhaust pipe 1, wherein the specific position of the position reference tool 2 can ensure that the mandrel 6 on the main shaft of the machine tool can contact the vertical shaft 212 of the position reference tool 2 before and after the workbench 3 rotates;
3) clamping a thimble 5 at one end of a main shaft of the machine tool, scribing the thimble 5 by aligning the thimble 5 with the cross center line of the square flange surface of the exhaust pipe 1, and establishing a workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe 1: x0, Y0, Z0, corresponding to the mechanical coordinate systems Xb, Yb, Zb, as shown in fig. 4;
4) machining the square flange surface and the related hole of the exhaust pipe 1 by using a workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe 1;
5) as shown in fig. 5, when the mandrel 6 is clamped at one end of the main shaft of the machine tool, and the end surface of the mandrel 6 is close to the vertical shaft 212 side of the position reference tool 2, the mechanical coordinate Zc corresponding to the center C of the position reference tool 2 can be obtained as follows:
Zc=Z1－L1－D/2
z1 is the current Z-axis mechanical coordinate value corresponding to the center of the machine tool spindle
L1 is the length of the mandrel 6
D is the diameter of a vertical shaft of the position reference tool 2;
6) as shown in fig. 6, the mechanical coordinate Xc corresponding to the center C of the position reference tool 2 obtained by using the outer circumference of the mandrel bar 6 to be close to the outer side of the vertical shaft 212 of the position reference tool 2 is:
Xc =X1＋d/2＋D/2
x1 is the current X-axis mechanical coordinate value corresponding to the center of the machine tool spindle
d is the diameter of the core rod 6
D is the diameter of the vertical shaft 212 of the position reference tool 2;
7) as shown in fig. 7, a position dimension L2= Xb-Xc in the X-axis direction, and a position dimension L3= Zb-Zc in the Z-axis direction, of the center B of the square flange surface of the exhaust pipe 1 and the center C of the position reference tool 2;
8) as shown in fig. 8, the table 3 is rotated 120 ° in the counterclockwise direction, so that the circular flange surface of the exhaust pipe 1 is perpendicular to the central line of the main shaft of the machine tool, a is the center of the circular flange surface of the exhaust pipe, and since the relative position between the center B of the square flange surface of the exhaust pipe 1 and the center C of the position reference tool 2 is fixed, L2 and L3 are known and unchanged, and it can be found that the position dimensions L4 and L5 between the center a of the circular flange surface of the exhaust pipe 1 and the center C of the position reference tool 2 at this time are respectively:
L4=L－L3
L5=L2－H
l and H are respectively the position size between the center B of the square flange surface of the exhaust pipe 1 and the center A of the circular flange surface, and specifically L =575 and H = 393.8;
9) taking a connecting line AC between the center A of the circular flange surface of the exhaust pipe 1 and the center C of the position reference tool 2 as a hypotenuse to form a right-angled triangle ADC, and calculating by utilizing L4 and L5 through a trigonometric function to obtain the side lengths of two right-angled sides AD and CD; specifically, as shown in fig. 8, if an included angle between a connecting line AC between a center a of a circular flange surface of the exhaust pipe 1 and a center C of the position reference tool 2 and a center line of the position reference tool center C is α, then:
tanα=L5/L4
α=arctan（L5/L4）
∠DCA=γ－α
gamma = 90-60 ° =30 ° (wherein 60 ° is the phase angle of the exhaust pipe circular flange surface and the square flange surface)
In the right-angled triangle ADC, AD = AC × sin ═ DCA, and CD = AC × cos ═ DCA;
10) as shown in fig. 9, the machine coordinate Zc1 corresponding to the center C of the position reference tool 2 obtained by positioning the end surface of the core rod 6 on the machine tool spindle on the side of the vertical axis 212 of the position reference tool 2 is:
Zc1 =Z11－L1－D/2
z11 is the current Z-axis mechanical coordinate corresponding to the center of the mechanical main shaft
L1 is the length of the mandrel 6
D is the diameter of the vertical shaft 212 of the position reference tool 2;
11) as shown in fig. 10, the mechanical coordinate Xc1 corresponding to the center C of the position reference tool obtained by using the outer circle of the mandrel close to the outer side of the vertical shaft of the position reference tool is:
Xc1 =X11－d/2－D/2
x11 is the current X-axis mechanical coordinate value corresponding to the mechanical spindle center
d is the diameter of the core rod 6
D is the diameter of the vertical shaft 212 of the position reference tool 2;
12) as shown in fig. 11, the mechanical coordinate Xa = Xc 1-CD of the center a of the circular flange surface of the exhaust pipe 1 in the X-axis direction, and the mechanical coordinate Za = Zc1 + AD in the Z-axis direction are respectively set to 0 and 0, and a workpiece coordinate system G55 of the center a of the circular flange surface of the exhaust pipe 1 is established: the workpiece coordinate system Y0 of X0, Z0, G55 and the workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe 1: y0 is the same;
13) the circular flange face of the exhaust pipe 1 and the related hole are machined by using a workpiece coordinate system G55 of the center A of the circular flange face of the exhaust pipe 1.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (7)
1. A method for establishing a coordinate system of an exhaust pipe after a horizontal boring and milling machining center workbench rotates is characterized by comprising the following steps:
1) supporting a cone flange of the exhaust pipe on a workbench of a horizontal boring and milling machining center, supporting a circular flange end of the exhaust pipe on an adjustable support frame, adjusting the adjustable support frame to enable the central line of the exhaust pipe to be horizontal, and pressing the upper sides of two ends of the exhaust pipe by using a pressing plate;
2) fixedly mounting a position reference tool on a workbench and locating at one side of an exhaust pipe;
3) clamping a thimble at one end of a machine tool main shaft, aligning the thimble with a cross center line of the square flange surface of the exhaust pipe, and scribing to establish a workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe: x0, Y0 and Z0 corresponding to mechanical coordinate systems Xb, Yb and Zb;
4) processing the square flange surface of the exhaust pipe and a related hole by utilizing a workpiece coordinate system G54 of the center B of the square flange surface of the exhaust pipe;
5) clamping a core rod at one end of a machine tool spindle, and obtaining a mechanical coordinate Zc corresponding to the center C of the position reference tool by using the end surface of the core rod close to one side of a vertical shaft of the position reference tool;
6) obtaining a mechanical coordinate Xc corresponding to the center C of the position reference tool by using the outer circle of the core rod to lean against the outer side of the vertical shaft of the position reference tool;
7) the position size L2= Xb-Xc of the center B of the exhaust pipe square flange surface and the center C of the position reference tool in the X-axis direction, and the position size L3= Zb-Zc in the Z-axis direction;
8) rotating the workbench 120 degrees along the counterclockwise direction, so that the circular flange surface of the exhaust pipe is perpendicular to the central line of the machine tool spindle, wherein A is the center of the circular flange surface of the exhaust pipe, and the position sizes L4 and L5 between the center A of the circular flange surface of the exhaust pipe and the center C of the position reference tool at the moment can be obtained as follows:
L4=L－L3
L5=L2－H
l and H are the position size between the center B of the square flange surface of the exhaust pipe and the center A of the circular flange surface respectively;
9) taking a connecting line of the center A of the circular flange surface of the exhaust pipe and the center C of the position reference tool as a hypotenuse to form a right-angled triangle ADC, and calculating by utilizing L4 and L5 through a trigonometric function to obtain the side lengths of two right-angled sides AD and CD;
10) obtaining a mechanical coordinate Zc1 corresponding to the center C of the position reference tool by using the end surface of the core rod on the main shaft of the machine tool to lean against one side of the vertical shaft of the position reference tool;
11) the outer circle of the core rod is close to the outer side of the vertical shaft of the position reference tool, so that a mechanical coordinate Xc1 corresponding to the center C of the position reference tool can be obtained;
12) the mechanical coordinate Xa = Xc 1-CD of the center A of the circular flange surface of the exhaust pipe in the X-axis direction, the mechanical coordinate Za = Zc1 + AD of the Z-axis direction, the mechanical coordinate Xa in the X-axis direction is set to be 0, the mechanical coordinate Za in the Z-axis direction is set to be 0, and a workpiece coordinate system G55 of the center A of the circular flange surface of the exhaust pipe is established: the workpiece coordinate system Y0 of X0, Z0, G55 and the workpiece coordinate system G54 of the center B of the exhaust pipe square flange face: y0 is the same;
13) and machining the circular flange surface of the exhaust pipe and the related hole by utilizing a workpiece coordinate system G55 of the center A of the circular flange surface of the exhaust pipe.
2. The method for establishing the exhaust pipe coordinate system after the horizontal boring and milling machining center worktable rotates as claimed in claim 1, wherein: the position reference tool comprises an inverted T-shaped shaft, a plurality of mounting blocks and a plurality of double-headed bolts, the inverted T-shaped shaft comprises a transverse edge and a vertical shaft, the inverted T-shaped shaft is supported on a workbench, the plurality of mounting blocks are arranged in a T-shaped groove of the workbench at intervals, the lower ends of the plurality of double-headed bolts penetrate through the transverse edge of the inverted T-shaped shaft respectively and are screwed on the corresponding mounting blocks, and the upper ends of the plurality of double-headed bolts are locked through nuts respectively.
3. The method for establishing the exhaust pipe coordinate system after the horizontal boring and milling machining center worktable rotates as claimed in claim 1, wherein: in the step 2), the specific position of the position reference tool can ensure that the mandrel on the main shaft of the machine tool can contact the vertical shaft of the position reference tool before and after the workbench rotates.
4. The method for establishing the exhaust pipe coordinate system after the horizontal boring and milling machining center worktable rotates as claimed in claim 1, wherein: zc in the step 5) is as follows:
Zc=Z1－L1－D/2
z1 is the current Z-axis mechanical coordinate value corresponding to the center of the machine tool spindle
L1 is the mandrel length
D is the diameter of the vertical shaft of the position reference tool.
5. The method for establishing the coordinate system of the exhaust pipe after the rotation of the horizontal boring and milling machining center worktable of claim 1 is characterized in that: xc in the step 6) is as follows:
Xc =X1＋d/2＋D/2；
x1 is the current X-axis mechanical coordinate value corresponding to the center of the machine tool spindle
d is the diameter of the core rod
D is the diameter of the vertical shaft of the position reference tool.
6. The method for establishing the exhaust pipe coordinate system after the horizontal boring and milling machining center worktable rotates as claimed in claim 1, wherein: zc1 in the step 10) is as follows:
Zc1 =Z11－L1－D/2
z11 is the current Z-axis mechanical coordinate corresponding to the center of the mechanical main shaft
L1 is the mandrel length
D is the diameter of the vertical shaft of the position reference tool.
7. The method for establishing the coordinate system of the exhaust pipe after the rotation of the horizontal boring and milling machining center worktable of claim 1 is characterized in that: xc1 in the step 11) is as follows:
Xc1 =X11－d/2－D/2
x11 is the current X-axis mechanical coordinate value corresponding to the mechanical spindle center
d is the diameter of the core rod
D is the diameter of the vertical shaft of the position reference tool.
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| CN111037328A (en) * | 2019-12-18 | 2020-04-21 | 陕西法士特齿轮有限责任公司 | Positioning method and machining method of shell part in horizontal machining center |
| CN111168099A (en) * | 2020-01-14 | 2020-05-19 | 西安稀有金属材料研究院有限公司 | Method for precisely machining multiple holes on workpiece by digital display milling and boring machine |
| CN111552234A (en) * | 2020-05-12 | 2020-08-18 | 广州达意隆包装机械股份有限公司 | Processing technology for four-axis linkage processing of sealing guide rail of bottle blowing machine |
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